//======================================================================
//======================================================================
void NvGraphicShaderGL::Load(const char* vert, const char* frag)
{
NvGLSLProgram *prog = NvGLSLProgram::createFromStrings(vert, frag);
CHECK_GL_ERROR();
if (prog==NULL)
{
// !!!!TBD TODO
return;
}
m_program = prog;
prog->enable();
m_positionIndex = prog->getAttribLocation("position");
m_uvIndex = prog->getAttribLocation("tex");
prog->setUniform1i(prog->getUniformLocation("sampler"), 0); // texunit index zero.
m_matrixIndex = prog->getUniformLocation("pixelToClipMat");
m_alphaIndex = prog->getUniformLocation("alpha");
m_colorIndex = prog->getUniformLocation("color");
prog->disable();
CHECK_GL_ERROR();
}
void TopazSample::drawModel(GLenum mode, NvGLSLProgram& program, TopazGLModel& model)
{
glVertexAttribFormat(VERTEX_POS, 3, GL_FLOAT, GL_FALSE, model.getModel()->getCompiledPositionOffset());
glVertexAttribBinding(VERTEX_POS, 0);
glEnableVertexAttribArray(VERTEX_POS);
program.enable();
program.bindTextureRect("pattern", 0, brushStyle->getTextureId());
glBindBufferRange(GL_UNIFORM_BUFFER, UBO_OBJECT, model.getBufferID("ubo"), 0, sizeof(ObjectData));
glBindVertexBuffer(0, model.getBufferID("vbo"), 0, model.getModel()->getCompiledVertexSize() * sizeof(float));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, model.getBufferID("ibo"));
glDrawElements(mode, model.getModel()->getCompiledIndexCount(NvModelPrimType::TRIANGLES), GL_UNSIGNED_INT, nullptr);
if (model.cornerPointsExists())
{
glBindBufferRange(GL_UNIFORM_BUFFER, UBO_OBJECT, model.getCornerBufferID("ubo"), 0, sizeof(ObjectData));
glBindVertexBuffer(0, model.getCornerBufferID("vbo"), 0, sizeof(nv::vec3f));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, model.getCornerBufferID("ibo"));
glDrawElements(GL_LINE_STRIP, model.getCornerIndices().size(), GL_UNSIGNED_INT, nullptr);
}
program.disable();
glDisableVertexAttribArray(VERTEX_POS);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexBuffer(0, 0, 0, 0);
}
