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Use shaders to draw star as point

pull/3/head
Hleb Valoshka 2019-11-26 23:56:24 +03:00
parent f8c254c634
commit a4af9e3e05
1 changed files with 7 additions and 9 deletions
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16
src/celengine/render.cpp
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@ -320,10 +320,9 @@ PointStarVertexBuffer::~PointStarVertexBuffer()
void PointStarVertexBuffer::startSprites()
{
CelestiaGLProgram* prog = renderer.getShaderManager().getShader("star");
auto *prog = renderer.getShaderManager().getShader("star");
if (prog == nullptr)
return;
prog->use();
prog->samplerParam("starTex") = 0;
@ -348,6 +347,11 @@ void PointStarVertexBuffer::startSprites()
void PointStarVertexBuffer::startPoints()
{
auto *prog = renderer.getShaderManager().getShader(ShaderProperties::PerVertexColor);
if (prog == nullptr)
return;
prog->use();
unsigned int stride = sizeof(StarVertex);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, stride, &vertices[0].position);
@ -375,12 +379,10 @@ void PointStarVertexBuffer::render()
if (useSprites)
{
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
glEnable(GL_TEXTURE_2D);
}
else
{
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
glDisable(GL_TEXTURE_2D);
glPointSize(1.0f);
}
glVertexPointer(3, GL_FLOAT, stride, &vertices[0].position);
@ -410,13 +412,9 @@ void PointStarVertexBuffer::finish()
if (useSprites)
{
glDisableVertexAttribArray(CelestiaGLProgram::PointSizeAttributeIndex);
glUseProgram(0);
glDisable(GL_POINT_SPRITE);
}
else
{
glEnable(GL_TEXTURE_2D);
}
glUseProgram(0);
}
inline void PointStarVertexBuffer::addStar(const Eigen::Vector3f& pos,