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Engine for computing a normal map from a height map. More...
#include <Inventor/engines/SoHeightMapToNormalMap.h>
Public Types | |
enum | NormalMapFormat { INT8 } |
Public Member Functions | |
SoHeightMapToNormalMap (void) | |
Static Public Member Functions | |
static void | initClass (void) |
static void | convert (const unsigned char *srcptr, SbVec2s size, int nc, SbImage &dst_out) |
Public Attributes | |
SoSFEnum | format |
Protected Member Functions | |
virtual void | inputChanged (SoField *which) |
virtual void | evaluate (void) |
Engine for computing a normal map from a height map.
This engine will create a normal map texture from a height map texture. You can use it in an Inventor file like this:
Texture2 {
image = HeightMapToNormalMap {
sourceImage = Texture2 { filename "HeightMap.jpg" } . image
} . image
}
Be aware that the field connections will remain active, so both Texture2 nodes and the HeightMapToNormalMap engine will be kept resident in memory (unless you intervene manually and detach the engine) even though only the "outer" Texture2 node is needed. This can give quite a big memory use overhead.
Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
SoHeightMapToNormalMap::SoHeightMapToNormalMap | ( | void | ) |
Constructor.
void SoHeightMapToNormalMap::initClass | ( | void | ) | [static] |
Class initializer.
Reimplemented from SoTexture2Convert.
void SoHeightMapToNormalMap::convert | ( | const unsigned char * | srcptr, | |
SbVec2s | size, | |||
int | nc, | |||
SbImage & | dst_out | |||
) | [static] |
Static function for computing a normal map from a height map. This function can be used directly without any engine instantiation.
void SoHeightMapToNormalMap::evaluate | ( | void | ) | [protected, virtual] |
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Implements SoEngine.
This setting decides what kind of normal map is generated. For now, only the INT8 format is available, and it is the default value.
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