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* Make sure to set texture max level depending on whether mipmaps are to be generated, included in texture, or not required at all - this reduces memory allocated by GPU for textures that do not use mipmaps.

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This commit is contained in:
shadowislord 2014-06-01 15:03:08 -04:00
parent 68cb1e900f
commit 465e2b2280
1 changed files with 13 additions and 7 deletions
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20
jme3-lwjgl/src/main/java/com/jme3/renderer/lwjgl/LwjglRenderer.java
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@ -1850,18 +1850,24 @@ public class LwjglRenderer implements Renderer {
} }
if (!img.hasMipmaps() && img.isGeneratedMipmapsRequired()) { if (!img.hasMipmaps() && img.isGeneratedMipmapsRequired()) {
// No pregenerated mips available, // Image does not have mipmaps, but they are required.
// generate from base level if required // Generate from base level.
if (!GLContext.getCapabilities().OpenGL30) { if (!GLContext.getCapabilities().OpenGL30) {
glTexParameteri(target, GL_GENERATE_MIPMAP, GL_TRUE); glTexParameteri(target, GL_GENERATE_MIPMAP, GL_TRUE);
img.setMipmapsGenerated(true); img.setMipmapsGenerated(true);
} else {
// For OpenGL3 and up.
// We'll generate mipmaps via glGenerateMipmapEXT (see below)
} }
} else if (img.hasMipmaps()) {
// Image already has mipmaps, set the max level based on the
// number of mipmaps we have.
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, img.getMipMapSizes().length - 1);
} else { } else {
// Image already has mipmaps or no mipmap generation desired. // Image does not have mipmaps and they are not required.
// glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, 0 ); // Specify that that the texture has no mipmaps.
if (img.getMipMapSizes() != null) { glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, 0);
glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, img.getMipMapSizes().length - 1);
}
} }
int imageSamples = img.getMultiSamples(); int imageSamples = img.getMultiSamples();