func RenderTexturedRect(cam *Camera, m *v.Matrix4, sizeX, sizeY float32, t *Texture) {
cam.LoadProjection()
cam.LoadModelview(m)
gl.Enable(gl.TEXTURE_2D)
t.tex.Bind(gl.TEXTURE_2D)
gl.Color4ub(255, 255, 255, 255)
gl.Begin(gl.QUADS)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-sizeX, -sizeY, 0)
gl.TexCoord2f(1, 1)
gl.Vertex3f(sizeX, -sizeY, 0)
gl.TexCoord2f(1, 0)
gl.Vertex3f(sizeX, sizeY, 0)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-sizeX, sizeY, 0)
gl.End()
gl.Disable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, 0)
}
func (self *SimpleRenderOp) Render(cam *Camera, m *v.Matrix4) {
cam.LoadProjection()
cam.LoadModelview(m)
if self.Blending {
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.DepthMask(false)
}
if len(self.Textures) > 0 {
gl.Enable(gl.TEXTURE_2D)
for i := 0; i < len(self.Textures); i++ {
self.Textures[i].Bind(i)
}
}
if self.SProgram != nil {
self.SProgram.Use()
self.SProgramConf(self.SProgram)
}
if self.Buffer.HaveVBO() {
DrawVBO(self.Buffer)
} else {
DrawArray(self.Buffer)
}
if self.SProgram != nil {
self.SProgram.Unuse()
}
if self.Blending {
gl.Disable(gl.BLEND)
gl.DepthMask(true)
}
if len(self.Textures) > 0 {
gl.Disable(gl.TEXTURE_2D)
for i := 0; i < len(self.Textures); i++ {
self.Textures[i].Unbind(i)
}
}
}
func RenderSprite(cam *Camera, m *v.Matrix4, sizeX, sizeY float32, t *Texture) {
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.DepthMask(false)
//gl.Disable(gl.DEPTH_TEST)
RenderTexturedRect(cam, m, sizeX, sizeY, t)
gl.Disable(gl.BLEND)
gl.DepthMask(true)
//gl.Enable(gl.DEPTH_TEST)
}
func Setup() {
gl.Enable(gl.CULL_FACE)
gl.Disable(gl.LIGHTING)
gl.Enable(gl.DEPTH_TEST)
}
func RenderUIStart() {
gl.Disable(gl.DEPTH_TEST)
gl.DepthMask(false)
}