r_model_alias.c File Reference

shared alias model loading code (md2, md3) More...

#include "r_local.h"
#include "../../shared/parse.h"
#include "r_state.h"

Include dependency graph for r_model_alias.c:

Go to the source code of this file.

Functions
void	R_ModLoadAnims (mAliasModel_t *mod, void *buffer)
static void	R_ModCalcNormalsAndTangents (mAliasMesh_t *mesh, int framenum, const vec3_t translate, qboolean backlerp)
	Calculates a per-vertex tangentspace basis and stores it in GL arrays attached to the mesh.
qboolean	R_ModLoadMDX (model_t *mod)
	Tries to load a mdx file that contains the normals and the tangents for a model.
void	R_ModCalcUniqueNormalsAndTangents (mAliasMesh_t *mesh, int nFrames, float smoothness)
	Calculates normals and tangents for all frames and does vertex merging based on smoothness.
image_t *	R_AliasModelGetSkin (const char *modelFileName, const char *skin)
image_t *	R_AliasModelState (const model_t *mod, int *mesh, int *frame, int *oldFrame, int *skin)
void	R_FillArrayData (mAliasModel_t *mod, mAliasMesh_t *mesh, float backlerp, int framenum, int oldframenum, qboolean prerender)
	Converts the model data into the opengl arrays.
void	R_ModLoadArrayData (mAliasModel_t *mod, mAliasMesh_t *mesh, qboolean loadNormals)
	Allocates data arrays for animated models. Only called once at loading time.

---

Detailed Description

shared alias model loading code (md2, md3)

Definition in file r_model_alias.c.

---

Function Documentation

image_t* R_AliasModelGetSkin	(	const char *	modelFileName,
		const char *	skin
	)

Definition at line 498 of file r_model_alias.c.

References Com_ReplaceFilename(), it_skin, MAX_QPATH, and R_FindImage().

Referenced by MD2Check(), MD2SkinFix(), R_LoadObjSkin(), R_ModLoadAliasDPMModel(), R_ModLoadAliasMD2MeshIndexed(), R_ModLoadAliasMD2MeshUnindexed(), and R_ModLoadAliasMD3Model().

image_t* R_AliasModelState	(	const model_t *	mod,
		int *	mesh,
		int *	frame,
		int *	oldFrame,
		int *	skin
	)

Definition at line 509 of file r_model_alias.c.

References model_s::alias, Com_Error(), Com_Printf(), ERR_DROP, mAliasModel_s::meshes, model_s::name, mAliasModel_s::num_frames, mAliasModel_s::num_meshes, mAliasMesh_s::num_skins, mAliasSkin_s::skin, mAliasMesh_s::skins, and image_s::texnum.

Referenced by R_DrawEntities(), R_DrawModelDirect(), and R_DrawModelParticle().

void R_FillArrayData	(	mAliasModel_t *	mod,
		mAliasMesh_t *	mesh,
		float	backlerp,
		int	framenum,
		int	oldframenum,
		qboolean	prerender
	)

Converts the model data into the opengl arrays.

Parameters:

	mod	The model to convert
	mesh	The particular mesh of the model to convert
	backlerp	The linear back interpolation when loading the data
	framenum	The frame number of the mesh to load (if animated)
	oldframenum	The old frame number (used to interpolate)
	prerender	If this is true, all data is filled to the arrays. If false, then e.g. the normals are only filled to the arrays if the lighting is activated.

Note:

If GLSL programs are enabled, the actual interpolation will be done on the GPU, but this function is still needed to fill the GL arrays for the keyframes

Todo:

damn slow - optimize this

Definition at line 554 of file r_model_alias.c.

References mAliasModel_s::curFrame, mAliasModel_s::frames, i, mAliasMesh_s::indexes, lengthof, rstate_t::lighting_enabled, MAX_ALIAS_VERTS, mAliasMesh_s::next_normals, mAliasMesh_s::next_tangents, mAliasMesh_s::next_verts, mAliasMesh_s::normals, mAliasMesh_s::num_tris, mAliasMesh_s::num_verts, mAliasModel_s::oldFrame, mAliasVertex_s::point, qfalse, qtrue, R_ModCalcNormalsAndTangents(), r_state, mAliasMesh_s::stcoords, mAliasMesh_s::tangents, texunit_diffuse, mAliasFrame_s::translate, Vector2Copy, VectorCopy, VectorSet, rstate_t::vertex_array_3d, mAliasMesh_s::vertexes, and mAliasMesh_s::verts.

Referenced by R_DrawAliasFrameLerp(), and R_ModLoadArrayData().

static void R_ModCalcNormalsAndTangents	(	mAliasMesh_t *	mesh,
		int	framenum,
		const vec3_t	translate,
		qboolean	backlerp
	)			[static]

Calculates a per-vertex tangentspace basis and stores it in GL arrays attached to the mesh.

Parameters:

	mesh	The mesh to calculate normals for
	framenum	The animation frame to calculate normals for
	translate	The frame translation for the given animation frame
	backlerp	Whether to store the results in the GL arrays for the previous keyframe or the next keyframe

See also:

R_ModCalcUniqueNormalsAndTangents

Definition at line 103 of file r_model_alias.c.

References CrossProduct(), DotProduct, i, mAliasMesh_s::indexes, len, mIndexList_s::length, mIndexList_s::list, mAliasCoord_t, MAX_ALIAS_TRIS, mAliasMesh_s::next_normals, mAliasMesh_s::next_tangents, mAliasMesh_s::next_verts, mAliasMesh_s::normals, mAliasMesh_s::num_tris, mAliasMesh_s::num_verts, Orthogonalize(), mAliasMesh_s::revIndexes, mAliasMesh_s::stcoords, mAliasMesh_s::tangents, mAliasMesh_s::texcoords, Vector2Copy, Vector2Subtract, Vector4Copy, VectorAdd, VectorClear, VectorCopy, VectorMul, VectorNormalize(), VectorSubtract, mAliasMesh_s::vertexes, and mAliasMesh_s::verts.

Referenced by R_FillArrayData().

void R_ModCalcUniqueNormalsAndTangents	(	mAliasMesh_t *	mesh,
		int	nFrames,
		float	smoothness
	)

Calculates normals and tangents for all frames and does vertex merging based on smoothness.

Parameters:

	mesh	The mesh to calculate normals for
	nFrames	How many frames the mesh has
	smoothness	How aggressively should normals be smoothed; value is compared with dotproduct of vectors to decide if they should be merged

See also:

R_ModCalcNormalsAndTangents

Definition at line 292 of file r_model_alias.c.

References CrossProduct(), DotProduct, i, mAliasMesh_s::indexes, mIndexList_s::length, mIndexList_s::list, mAliasCoord_t, MAX_ALIAS_TRIS, MAX_ALIAS_VERTS, Mem_Free, Mem_PoolAlloc, mAliasMesh_s::num_tris, mAliasMesh_s::num_verts, Orthogonalize(), mAliasMesh_s::revIndexes, mAliasMesh_s::stcoords, mAliasComplexVertex_s::tangent, Vector2Copy, Vector2Equal, Vector2Subtract, VectorAdd, VectorCopy, VectorEqual, VectorMul, VectorNormalize(), VectorSubtract, mAliasMesh_s::vertexes, and vid_modelPool.

Referenced by PrecalcNormalsAndTangents(), and R_ModLoadAliasMD2MeshUnindexed().

void R_ModLoadAnims	(	mAliasModel_t *	mod,
		void *	buffer
	)

Definition at line 36 of file r_model_alias.c.

References mAliasModel_s::animdata, mAliasModel_s::animname, Com_Error(), Com_Parse(), ERR_FATAL, mAliasAnim_s::from, MAX_ANIMS, Mem_PoolAlloc, mAliasAnim_s::name, mAliasModel_s::num_anims, mAliasModel_s::num_frames, Q_strncpyz(), mAliasAnim_s::time, mAliasAnim_s::to, and vid_modelPool.

Referenced by R_ModLoadAliasMD2Model().

void R_ModLoadArrayData	(	mAliasModel_t *	mod,
		mAliasMesh_t *	mesh,
		qboolean	loadNormals
	)

Allocates data arrays for animated models. Only called once at loading time.

Definition at line 642 of file r_model_alias.c.

References mAliasModel_s::curFrame, Mem_PoolAlloc, mAliasMesh_s::next_normals, mAliasMesh_s::next_tangents, mAliasMesh_s::next_verts, mAliasMesh_s::normals, mAliasModel_s::num_frames, mAliasMesh_s::num_tris, mAliasModel_s::oldFrame, R_FillArrayData(), st, mAliasMesh_s::tangents, mAliasMesh_s::texcoords, mAliasMesh_s::verts, and vid_modelPool.

Referenced by R_ModLoadAliasDPMModel(), R_ModLoadAliasMD2Model(), and R_ModLoadAliasMD3Model().

qboolean R_ModLoadMDX

(

model_t *

mod

)

Tries to load a mdx file that contains the normals and the tangents for a model.

See also:

R_ModCalcNormalsAndTangents

R_ModCalcUniqueNormalsAndTangents

Parameters:

mod

The model to load the mdx file for

Definition at line 217 of file r_model_alias.c.

References model_s::alias, byte, Com_DefaultExtension(), Com_Error(), Com_StripExtension(), ERR_DROP, FS_FreeFile(), FS_LoadFile(), i, IDMDXHEADER, mAliasMesh_s::indexes, mIndexList_s::length, mIndexList_s::list, LittleLong(), MAX_ALIAS_VERTS, MAX_QPATH, MDX_VERSION, Mem_PoolAlloc, mAliasModel_s::meshes, model_s::name, mAliasModel_s::num_frames, mAliasModel_s::num_meshes, mAliasMesh_s::num_verts, qfalse, qtrue, mAliasMesh_s::revIndexes, mAliasMesh_s::vertexes, and vid_modelPool.

Referenced by R_ModLoadAliasMD2Mesh().