Пример #1
0
func initquad() {
	ver := []gl.Float{-1, 1, 1, 1, -1, -1, 1, -1}
	gl.BindBuffer(gl.ARRAY_BUFFER, 1)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(4*len(ver)),
		gl.Pointer(&ver[0]), gl.STATIC_DRAW)
	gl.VertexPointer(2, gl.FLOAT, 0, nil)
	tex := []gl.Float{0, 0, 1, 0, 0, 1, 1, 1}
	gl.BindBuffer(gl.ARRAY_BUFFER, 2)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(4*len(tex)),
		gl.Pointer(&tex[0]), gl.STATIC_DRAW)
	gl.TexCoordPointer(2, gl.FLOAT, 0, nil)
	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
}
Пример #2
0
func loadCubeToGPU() {
	newNormal(0, 0, 1)
	newVertex(-1, -1, 1)
	newVertex(1, -1, 1)
	newVertex(1, 1, 1)
	newVertex(-1, 1, 1)

	newNormal(0, 0, -1)
	newVertex(-1, -1, -1)
	newVertex(-1, 1, -1)
	newVertex(1, 1, -1)
	newVertex(1, -1, -1)

	newNormal(0, 1, 0)
	newVertex(-1, 1, -1)
	newVertex(-1, 1, 1)
	newVertex(1, 1, 1)
	newVertex(1, 1, -1)

	newNormal(0, -1, 0)
	newVertex(-1, -1, -1)
	newVertex(1, -1, -1)
	newVertex(1, -1, 1)
	newVertex(-1, -1, 1)

	newNormal(1, 0, 0)
	newVertex(1, -1, -1)
	newVertex(1, 1, -1)
	newVertex(1, 1, 1)
	newVertex(1, -1, 1)

	newNormal(-1, 0, 0)
	newVertex(-1, -1, -1)
	newVertex(-1, -1, 1)
	newVertex(-1, 1, 1)
	newVertex(-1, 1, -1)

	gl.GenBuffers(1, &gVBO)
	gl.BindBuffer(gl.ARRAY_BUFFER, gVBO)
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(unsafe.Sizeof(Vertex{})*24), gl.Pointer(&Vertices[0]), gl.STATIC_DRAW)

	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.EnableClientState(gl.NORMAL_ARRAY)
	gl.VertexPointer(3, gl.FLOAT, 24, nil)
	tmpStruct := Vertex{}
	gl.NormalPointer(gl.FLOAT, gl.Sizei(unsafe.Sizeof(Vertex{})), gl.Pointer(unsafe.Offsetof(tmpStruct.normal)))
}
Пример #3
0
func initWindow(sys system.System, width int, height int) {
	sys.CreateWindow(10, 10, width, height)
	sys.EnableVSync(false)

	err := gl.Init()
	if err != nil {
		panic(err)
	}

	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.EnableClientState(gl.COLOR_ARRAY)
	gl.Enable(gl.CULL_FACE)
	gl.FrontFace(gl.CW)

	gl.ClearColor(0, 0, 0, 1)
}
Пример #4
0
func glInit(width, height int) {
	gl.Init()
	gl.Enable(gl.TEXTURE_2D)
	gl.PixelStorei(gl.UNPACK_ALIGNMENT, 1)
	gl.Viewport(0, 0, gl.Sizei(width), gl.Sizei(height))
	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, gl.Double(width), gl.Double(height), 0, -1, 1)
	gl.MatrixMode(gl.MODELVIEW)
	gl.LoadIdentity()
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.EnableClientState(gl.COLOR_ARRAY)
	gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
	gl.VertexPointer(2, gl.FLOAT, 0, gl.Pointer(&vs[0]))
	gl.ColorPointer(3, gl.UNSIGNED_BYTE, 0, gl.Pointer(&cs[0]))
	gl.TexCoordPointer(2, gl.FLOAT, 0, gl.Pointer(&ts[0]))
}
Пример #5
0
// Need floor, right wall, and left wall matrices to draw the details
func (room *Room) render(floor, left, right mathgl.Mat4, zoom float32, base_alpha byte, drawables []Drawable, los_tex *LosTexture, floor_drawers []FloorDrawer) {
	do_color := func(r, g, b, a byte) {
		R, G, B, A := room.Color()
		A = alphaMult(A, base_alpha)
		gl.Color4ub(alphaMult(R, r), alphaMult(G, g), alphaMult(B, b), alphaMult(A, a))
	}
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
	gl.Enable(gl.STENCIL_TEST)
	gl.ClearStencil(0)
	gl.Clear(gl.STENCIL_BUFFER_BIT)

	gl.EnableClientState(gl.VERTEX_ARRAY)
	gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
	defer gl.DisableClientState(gl.VERTEX_ARRAY)
	defer gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)

	var vert roomVertex

	planes := []plane{
		{room.left_buffer, room.Wall, &left},
		{room.right_buffer, room.Wall, &right},
		{room.floor_buffer, room.Floor, &floor},
	}

	gl.PushMatrix()
	defer gl.PopMatrix()

	if los_tex != nil {
		gl.LoadMatrixf(&floor[0])
		gl.ClientActiveTexture(gl.TEXTURE1)
		gl.ActiveTexture(gl.TEXTURE1)
		gl.Enable(gl.TEXTURE_2D)
		gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
		los_tex.Bind()
		gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
		gl.ClientActiveTexture(gl.TEXTURE0)
		gl.ActiveTexture(gl.TEXTURE0)
		base.EnableShader("los")
		base.SetUniformI("los", "tex2", 1)
	}

	var mul, run mathgl.Mat4
	for _, plane := range planes {
		gl.LoadMatrixf(&floor[0])
		run.Assign(&floor)

		// Render the doors and cut out the stencil buffer so we leave them empty
		// if they're open
		switch plane.mat {
		case &left:
			gl.StencilFunc(gl.ALWAYS, 1, 1)
			gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
			for _, door := range room.Doors {
				if door.Facing != FarLeft {
					continue
				}
				door.TextureData().Bind()
				R, G, B, A := door.Color()
				do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
				gl.ClientActiveTexture(gl.TEXTURE0)
				door.TextureData().Bind()
				if door.door_glids.floor_buffer != 0 {
					gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
					gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
					gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.door_glids.floor_buffer)
					gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
					gl.ClientActiveTexture(gl.TEXTURE1)
					gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
					gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
				}
			}
			gl.StencilFunc(gl.NOTEQUAL, 1, 1)
			gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
			do_color(255, 255, 255, room.far_left.wall_alpha)

		case &right:
			gl.StencilFunc(gl.ALWAYS, 1, 1)
			gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
			for _, door := range room.Doors {
				if door.Facing != FarRight {
					continue
				}
				door.TextureData().Bind()
				R, G, B, A := door.Color()
				do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
				gl.ClientActiveTexture(gl.TEXTURE0)
				door.TextureData().Bind()
				if door.door_glids.floor_buffer != 0 {
					gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
					gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
					gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.door_glids.floor_buffer)
					gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
					gl.ClientActiveTexture(gl.TEXTURE1)
					gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
					gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
				}
			}
			gl.StencilFunc(gl.NOTEQUAL, 1, 1)
			gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
			do_color(255, 255, 255, room.far_right.wall_alpha)

		case &floor:
			gl.StencilFunc(gl.ALWAYS, 2, 2)
			gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
			do_color(255, 255, 255, 255)
		}

		gl.ClientActiveTexture(gl.TEXTURE0)
		gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
		gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
		gl.ClientActiveTexture(gl.TEXTURE1)
		if los_tex != nil {
			los_tex.Bind()
		}
		gl.BindBuffer(gl.ARRAY_BUFFER, room.vbuffer)
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
		// Now draw the walls
		gl.LoadMatrixf(&floor[0])
		plane.texture.Data().Bind()
		gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, plane.index_buffer)
		if (plane.mat == &left || plane.mat == &right) && strings.Contains(string(room.Wall.Path), "gradient.png") {
			base.EnableShader("gorey")
			base.SetUniformI("gorey", "tex", 0)
			base.SetUniformI("gorey", "foo", Foo)
			base.SetUniformF("gorey", "num_rows", Num_rows)
			base.SetUniformF("gorey", "noise_rate", Noise_rate)
			base.SetUniformF("gorey", "num_steps", Num_steps)
		}
		if plane.mat == &floor && strings.Contains(string(room.Floor.Path), "gradient.png") {
			base.EnableShader("gorey")
			base.SetUniformI("gorey", "tex", 0)
			base.SetUniformI("gorey", "foo", Foo)
			base.SetUniformF("gorey", "num_rows", Num_rows)
			base.SetUniformF("gorey", "noise_rate", Noise_rate)
			base.SetUniformF("gorey", "num_steps", Num_steps)
			zexp := math.Log(float64(zoom))
			frac := 1 - 1/zexp
			frac = (frac - 0.6) * 5.0
			switch {
			case frac > 0.7:
				base.SetUniformI("gorey", "range", 1)
			case frac > 0.3:
				base.SetUniformI("gorey", "range", 2)
			default:
				base.SetUniformI("gorey", "range", 3)
			}
		}
		if plane.mat == &floor {
			R, G, B, _ := room.Color()
			gl.Color4ub(R, G, B, 255)
		}
		gl.DrawElements(gl.TRIANGLES, gl.Sizei(room.floor_count), gl.UNSIGNED_SHORT, nil)
		if los_tex != nil {
			base.EnableShader("los")
		} else {
			base.EnableShader("")
		}
	}

	for _, wt := range room.WallTextures {
		if room.wall_texture_gl_map == nil {
			room.wall_texture_gl_map = make(map[*WallTexture]wallTextureGlIds)
			room.wall_texture_state_map = make(map[*WallTexture]wallTextureState)
		}
		ids := room.wall_texture_gl_map[wt]
		state := room.wall_texture_state_map[wt]
		var new_state wallTextureState
		new_state.flip = wt.Flip
		new_state.rot = wt.Rot
		new_state.x = wt.X
		new_state.y = wt.Y
		new_state.room.x = room.X
		new_state.room.y = room.Y
		new_state.room.dx = room.Size.Dx
		new_state.room.dy = room.Size.Dy
		if new_state != state {
			wt.setupGlStuff(room.X, room.Y, room.Size.Dx, room.Size.Dy, &ids)
			room.wall_texture_gl_map[wt] = ids
			room.wall_texture_state_map[wt] = new_state
		}
		gl.LoadMatrixf(&floor[0])
		if ids.vbuffer != 0 {
			wt.Texture.Data().Bind()
			R, G, B, A := wt.Color()

			gl.ClientActiveTexture(gl.TEXTURE0)
			gl.BindBuffer(gl.ARRAY_BUFFER, ids.vbuffer)
			gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
			gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
			gl.ClientActiveTexture(gl.TEXTURE1)
			gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
			gl.ClientActiveTexture(gl.TEXTURE0)
			if ids.floor_buffer != 0 {
				gl.StencilFunc(gl.ALWAYS, 2, 2)
				gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.floor_buffer)
				gl.Color4ub(R, G, B, A)
				gl.DrawElements(gl.TRIANGLES, ids.floor_count, gl.UNSIGNED_SHORT, nil)
			}
			if ids.left_buffer != 0 {
				gl.StencilFunc(gl.ALWAYS, 1, 1)
				gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.left_buffer)
				do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
				gl.DrawElements(gl.TRIANGLES, ids.left_count, gl.UNSIGNED_SHORT, nil)
			}
			if ids.right_buffer != 0 {
				gl.StencilFunc(gl.ALWAYS, 1, 1)
				gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, ids.right_buffer)
				do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
				gl.DrawElements(gl.TRIANGLES, ids.right_count, gl.UNSIGNED_SHORT, nil)
			}
		}
	}
	base.EnableShader("marble")
	base.SetUniformI("marble", "tex2", 1)
	base.SetUniformF("marble", "room_x", float32(room.X))
	base.SetUniformF("marble", "room_y", float32(room.Y))
	for _, door := range room.Doors {
		door.setupGlStuff(room)
		if door.threshold_glids.vbuffer == 0 {
			continue
		}
		if door.AlwaysOpen() {
			continue
		}
		if door.highlight_threshold {
			gl.Color4ub(255, 255, 255, 255)
		} else {
			gl.Color4ub(128, 128, 128, 255)
		}
		gl.BindBuffer(gl.ARRAY_BUFFER, door.threshold_glids.vbuffer)
		gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
		gl.ClientActiveTexture(gl.TEXTURE1)
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
		gl.ClientActiveTexture(gl.TEXTURE0)
		gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, door.threshold_glids.floor_buffer)
		gl.DrawElements(gl.TRIANGLES, door.threshold_glids.floor_count, gl.UNSIGNED_SHORT, nil)
	}
	base.EnableShader("")
	if los_tex != nil {
		base.EnableShader("")
		gl.ActiveTexture(gl.TEXTURE1)
		gl.Disable(gl.TEXTURE_2D)
		gl.ActiveTexture(gl.TEXTURE0)
		gl.ClientActiveTexture(gl.TEXTURE1)
		gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
		gl.ClientActiveTexture(gl.TEXTURE0)
	}

	run.Assign(&floor)
	mul.Translation(float32(-room.X), float32(-room.Y), 0)
	run.Multiply(&mul)
	gl.LoadMatrixf(&run[0])
	gl.StencilFunc(gl.EQUAL, 2, 3)
	gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
	room_rect := image.Rect(room.X, room.Y, room.X+room.Size.Dx, room.Y+room.Size.Dy)
	for _, fd := range floor_drawers {
		x, y := fd.Pos()
		dx, dy := fd.Dims()
		if room_rect.Overlaps(image.Rect(x, y, x+dx, y+dy)) {
			fd.RenderOnFloor()
		}
	}

	do_color(255, 255, 255, 255)
	gl.LoadIdentity()
	gl.Disable(gl.STENCIL_TEST)
	room.renderFurniture(floor, 255, drawables, los_tex)

	gl.ClientActiveTexture(gl.TEXTURE1)
	gl.Disable(gl.TEXTURE_2D)
	gl.ClientActiveTexture(gl.TEXTURE0)
	base.EnableShader("")
}
Пример #6
0
func (d *Dictionary) RenderString(s string, x, y, z, height float64, just Justification) {
	if len(s) == 0 {
		return
	}
	strbuf, ok := d.strs[s]
	if !ok {
		defer d.RenderString(s, x, y, z, height, just)
	} else {
		render.EnableShader("glop.font")
		diff := 20/math.Pow(height, 1.0) + 5*math.Pow(d.data.Scale, 1.0)/math.Pow(height, 1.0)
		if diff > 0.4 {
			// TODO: Need to come up with decent values here
			diff = 0.4
		}
		render.SetUniformF("glop.font", "dist_min", float32(0.5-diff))
		render.SetUniformF("glop.font", "dist_max", float32(0.5+diff))
		defer render.EnableShader("")
	}
	size := unsafe.Sizeof(dictVert{})
	scale := height / float64(d.data.Maxy-d.data.Miny)
	width := float32(d.figureWidth(s) * scale)
	x_pos := float32(x)
	switch just {
	case Center:
		x_pos -= width / 2
	case Right:
		x_pos -= width
	}
	if ok {
		gl.PushMatrix()
		defer gl.PopMatrix()
		gl.Translated(gl.Double(x_pos), gl.Double(y), gl.Double(z))
		gl.Scaled(gl.Double(scale), gl.Double(scale), 1)

		gl.PushAttrib(gl.COLOR_BUFFER_BIT)
		defer gl.PopAttrib()
		gl.Enable(gl.BLEND)
		gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

		gl.Enable(gl.TEXTURE_2D)
		gl.BindTexture(gl.TEXTURE_2D, gl.Uint(d.texture))

		gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))

		gl.EnableClientState(gl.VERTEX_ARRAY)
		gl.VertexPointer(2, gl.FLOAT, gl.Sizei(size), nil)

		gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
		gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(size), gl.Pointer(unsafe.Offsetof(strbuf.vs[0].u)))

		gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
		gl.DrawElements(gl.TRIANGLES, gl.Sizei(len(strbuf.is)), gl.UNSIGNED_SHORT, nil)

		gl.DisableClientState(gl.VERTEX_ARRAY)
		gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
		gl.Disable(gl.TEXTURE_2D)
		return
	}
	x_pos = 0
	var prev rune
	for _, r := range s {
		if _, ok := d.data.Kerning[prev]; ok {
			x_pos += float32(d.data.Kerning[prev][r])
		}
		prev = r
		info := d.getInfo(r)
		xleft := x_pos + float32(info.Full_bounds.Min.X)
		xright := x_pos + float32(info.Full_bounds.Max.X)
		ytop := float32(info.Full_bounds.Max.Y) + float32(-d.data.Miny)
		ybot := float32(info.Full_bounds.Min.Y) + float32(-d.data.Miny)
		start := uint16(len(strbuf.vs))
		strbuf.is = append(strbuf.is, start+0)
		strbuf.is = append(strbuf.is, start+1)
		strbuf.is = append(strbuf.is, start+2)
		strbuf.is = append(strbuf.is, start+0)
		strbuf.is = append(strbuf.is, start+2)
		strbuf.is = append(strbuf.is, start+3)
		strbuf.vs = append(strbuf.vs, dictVert{
			x: xleft,
			y: ytop,
			u: float32(info.Pos.Min.X) / float32(d.data.Dx),
			v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
		})
		strbuf.vs = append(strbuf.vs, dictVert{
			x: xleft,
			y: ybot,
			u: float32(info.Pos.Min.X) / float32(d.data.Dx),
			v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
		})
		strbuf.vs = append(strbuf.vs, dictVert{
			x: xright,
			y: ybot,
			u: float32(info.Pos.Max.X) / float32(d.data.Dx),
			v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
		})
		strbuf.vs = append(strbuf.vs, dictVert{
			x: xright,
			y: ytop,
			u: float32(info.Pos.Max.X) / float32(d.data.Dx),
			v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
		})
		x_pos += float32(info.Advance) // - float32((info.Full_bounds.Dx() - info.Bounds.Dx()))
	}
	gl.GenBuffers(1, (*gl.Uint)(&strbuf.vbuffer))
	gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))
	gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(int(size)*len(strbuf.vs)), gl.Pointer(&strbuf.vs[0].x), gl.STATIC_DRAW)

	gl.GenBuffers(1, (*gl.Uint)(&strbuf.ibuffer))
	gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
	gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(strbuf.is[0]))*len(strbuf.is)), gl.Pointer(&strbuf.is[0]), gl.STATIC_DRAW)
	d.strs[s] = strbuf
}