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VizFramework: Improve the stability of text color in ResInsight.

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The setting for current OpenGL texture engine is not controlled well
enough, causing the wrong texture to be active when rendering text -
hence giving semi-random colors for the text.
This commit is contained in:
Magne Sjaastad 2013-10-04 14:02:14 +02:00
parent cf439fbf96
commit 90402c285d
2 changed files with 16 additions and 5 deletions
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4
Fwk/VizFwk/LibRender/cvfGlyph.cpp
View File

@ -347,11 +347,10 @@ void Glyph::setupAndBindTexture(OpenGLContext* oglContext, bool software)
texture->setWrapMode(Texture2D_FF::CLAMP);
texture->setMinFilter(Texture2D_FF::NEAREST);
texture->setMagFilter(Texture2D_FF::NEAREST);
texture->setupTexture(oglContext);
texture->setupTextureParams(oglContext);
ref<RenderStateTextureMapping_FF> textureMapping = new RenderStateTextureMapping_FF(texture.p());
textureMapping->setTextureFunction(RenderStateTextureMapping_FF::MODULATE);
textureMapping->setupTexture(oglContext);
m_textureBindings = textureMapping;
#endif
@ -364,7 +363,6 @@ void Glyph::setupAndBindTexture(OpenGLContext* oglContext, bool software)
sampler->setMagFilter(Sampler::NEAREST);
ref<Texture> texture = new Texture(m_textureImage.p());
texture->setupTexture(oglContext);
RenderStateTextureBindings* textureBindings = new RenderStateTextureBindings(texture.p(), sampler.p(), "dummy");
textureBindings->setupTextures(oglContext);

17
Fwk/VizFwk/LibRender/cvfTextDrawer.cpp
View File

@ -53,6 +53,7 @@
#include "cvfRenderStateDepth.h"
#include "cvfRenderStateBlending.h"
#include "cvfRenderStatePolygonOffset.h"
#include "cvfOpenGLCapabilities.h"
#ifndef CVF_OPENGL_ES
#include "cvfRenderState_FF.h"
@ -349,8 +350,20 @@ void TextDrawer::doRender2d(OpenGLContext* oglContext, const MatrixState& matrix
RenderStateLighting_FF light(false);
light.applyOpenGL(oglContext);
#endif
// The active texture may be set to something different than unit 0 if we end up using
// software rendering here, BUT the context actually has higher capabilities
// Must be set before any texture related OpenGL calls
if (oglContext->capabilities()->supportsOpenGL2())
{
glActiveTexture(GL_TEXTURE0);
}
// Will get turned on during rendering of text, but must be off for background and border
glDisable(GL_TEXTURE_2D);
projCam.applyOpenGL();
#endif
}
else
{
@ -417,7 +430,7 @@ void TextDrawer::doRender2d(OpenGLContext* oglContext, const MatrixState& matrix
#ifndef CVF_OPENGL_ES
glEnable(GL_COLOR_MATERIAL);
glDisable(GL_TEXTURE_2D);
glColor4fv(m_backgroundColor.ptr());
glColor3fv(m_backgroundColor.ptr());
glBegin(GL_TRIANGLE_FAN);
glVertex3fv(v1);
glVertex3fv(v2);